Search Results - "Kursar, Thomas A."

Does leaf shedding protect stems from cavitation during seasonal droughts?: A test of the hydraulic fuse hypothesis by Wolfe, Brett T., Sperry, John S., Kursar, Thomas A.

“…During droughts, leaves are predicted to act as ‘hydraulic fuses’ by shedding when plants reach critically low water potential (Ψplant), thereby slowing water…”
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Herbivores as drivers of negative density dependence in tropical forest saplings by Forrister, Dale L, Endara, María-José, Younkin, Gordon C, Coley, Phyllis D, Kursar, Thomas A

“…Ecological theory predicts that the high local diversity observed in tropical forests is maintained by negative density-dependent interactions within and…”
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global distribution of diet breadth in insect herbivores by Forister, Matthew L., Novotny, Vojtech, Panorska, Anna K., Baje, Leontine, Basset, Yves, Butterill, Philip T., Cizek, Lukas, Coley, Phyllis D., Dem, Francesca, Diniz, Ivone R., Drozd, Pavel, Fox, Mark, Glassmire, Andrea E., Hazen, Rebecca, Hrcek, Jan, Jahner, Joshua P., Kaman, Ondrej, Kozubowski, Tomasz J., Kursar, Thomas A., Lewis, Owen T., Lill, John, Marquis, Robert J., Miller, Scott E., Morais, Helena C., Murakami, Masashi, Nickel, Herbert, Pardikes, Nicholas A., Ricklefs, Robert E., Singer, Michael S., Smilanich, Angela M., Stireman, John O., Villamarín-Cortez, Santiago, Vodka, Stepan, Volf, Martin, Wagner, David L., Walla, Thomas, Weiblen, George D., Dyer, Lee A.

“…Understanding variation in resource specialization is important for progress on issues that include coevolution, community assembly, ecosystem processes, and…”
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Dispersal assembly of rain forest tree communities across the Amazon basin by Dexter, Kyle G., Lavin, Mathew, Torke, Benjamin M., Twyford, Alex D., Kursar, Thomas A., Coley, Phyllis D., Drake, Camila, Hollands, Ruth, Pennington, R. Toby

“…We investigate patterns of historical assembly of tree communities across Amazonia using a newly developed phylogeny for the species-rich neotropical tree…”
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Coevolutionary arms race versus host defense chase in a tropical herbivore–plant system by Endara, María-José, Coley, Phyllis D., Ghabash, Gabrielle, Nicholls, James A., Dexter, Kyle G., Donoso, David A., Stone, Graham N., Pennington, R. Toby, Kursar, Thomas A.

“…Coevolutionary models suggest that herbivores drive diversification and community composition in plants. For herbivores, many questions remain regarding how…”
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Consequences of interspecific variation in defenses and herbivore host choice for the ecology and evolution of Inga, a speciose rainforest tree by Coley, Phyllis D., Endara, María-José, Kursar, Thomas A.

“…We summarize work on a speciose Neotropical tree genus, Inga (Fabaceae), examining how interspecific variation in anti-herbivore defenses may have evolved, how…”
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Drought sensitivity shapes species distribution patterns in tropical forests by Condit, Richard, Kursar, Thomas A, Engelbrecht, Bettina M. J, Turner, Benjamin L, Hubbell, Stephen P, Tyree, Melvin T, Comita, Liza S

“…Although patterns of tree species distributions along environmental gradients have been amply documented in tropical forests, mechanisms causing these patterns…”
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evolution of antiherbivore defenses and their contribution to species coexistence in the tropical tree genus Inga by Kursar, Thomas A, Dexter, Kyle G, Lokvam, John, Pennington, R. Toby, Richardson, James E, Weber, Marjorie G, Murakami, Eric T, Drake, Camilla, McGregor, Ruth, Coley, Phyllis D

“…Plants and their herbivores constitute more than half of the organisms in tropical forests. Therefore, a better understanding of the evolution of plant…”
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Bioactivity of fungal endophytes as a function of endophyte taxonomy and the taxonomy and distribution of their host plants by Higginbotham, Sarah J, Arnold, A Elizabeth, Ibañez, Alicia, Spadafora, Carmenza, Coley, Phyllis D, Kursar, Thomas A

“…Fungal endophytes--fungi that grow within plant tissues without causing immediate signs of disease--are abundant and diverse producers of bioactive secondary…”
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Tolerance to low leaf water status of tropical tree seedlings is related to drought performance and distribution by Kursar, Thomas A, Engelbrecht, Bettina M.J, Burke, Amy, Tyree, Melvin T, EI Omari, Bouchra, Giraldo, Juan P

“…1. Habitat specialization models predict that adaptations to environmental conditions explain species distributions. In tropical rainforests, the ability of…”
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Chemocoding as an identification tool where morphological- and DNA-based methods fall short: Inga as a case study by Endara, María‐José, Coley, Phyllis D., Wiggins, Natasha L., Forrister, Dale L., Younkin, Gordon C., Nicholls, James A., Pennington, R. Toby, Dexter, Kyle G., Kidner, Catherine A., Stone, Graham N., Kursar, Thomas A.

“…The need for species identification and taxonomic discovery has led to the development of innovative technologies for large-scale plant identification. DNA…”
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Do differences in understory light contribute to species distributions along a tropical rainfall gradient? by Brenes-Arguedas, T., Roddy, A. B., Coley, P. D., Kursar, Thomas A.

“…In tropical forests, regional differences in annual rainfall correlate with differences in plant species composition. Although water availability is clearly…”
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The effect of symbiotic ant colonies on plant growth: a test using an Azteca-Cecropia system by Oliveira, Karla N, Coley, Phyllis D, Kursar, Thomas A, Kaminski, Lucas A, Moreira, Marcelo Z, Campos, Ricardo I

“…In studies of ant-plant mutualisms, the role that ants play in increasing the growth rates of their plant partners is potentially a key beneficial service. In…”
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Tracking of Host Defenses and Phylogeny During the Radiation of Neotropical Inga -Feeding Sawflies (Hymenoptera; Argidae) by Endara, María-José, Nicholls, James A, Coley, Phyllis D, Forrister, Dale L, Younkin, Gordon C, Dexter, Kyle G, Kidner, Catherine A, Pennington, R T, Stone, Graham N, Kursar, Thomas A

“…Coevolutionary theory has long predicted that the arms race between plants and herbivores is a major driver of host selection and diversification. At a local…”
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Antileishmanial Constituents of the Panamanian Endophytic Fungus Edenia sp by Martínez-Luis, Sergio, Della-Togna, Gina, Coley, Phyllis D, Kursar, Thomas A, Gerwick, William H, Cubilla-Rios, Luis

“…Bioassay-directed fractionation of extracts from the fermentation broth and mycelium of the fungus Edenia sp. led to the isolation of five antileishmanial…”
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Comparative Drought-Resistance of Seedlings of 28 Species of Co-Occurring Tropical Woody Plants by Bettina M. J. Engelbrecht, Kursar, Thomas A.

“…Quantifying plant drought resistance is important for understanding plant species' association to microhabitats with different soil moisture availability and…”
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Desiccation tolerance of five tropical seedlings in Panama. Relationship to a field assessment of drought performance by Tyree, M.T, Engelbrecht, B.M.J, Vargas, G, Kursar, T.A

“…Studies of the desiccation tolerance of the seedlings of five tropical trees were made on potted plants growing in a greenhouse. Pots were watered to field…”
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Drought effects on seedling survival in a tropical moist forest by Engelbrecht, B.M.J, Kursar, T.A, Tyree, M.T

“…The amount and seasonality of rainfall varies strongly in the tropics, and plant species abundance, distribution and diversity are correlated with rainfall…”
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On Tropical Forests and Their Pests by Coley, Phyllis D., Kursar, Thomas A.

“…Interactions with pest species may help to explain the high plant species diversity in tropical forests. Biologists have long been intrigued by the diversity…”
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Do pathogens limit the distributions of tropical trees across a rainfall gradient? by Spear, Erin R, Coley, Phyllis D, Kursar, Thomas A, Thrall, Peter

“…Organisms are adapted to particular habitats; consequently, community composition changes across environmental gradients, enhancing regional diversity. In…”
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